Apparatus for selecting and separating lease-warp threads



Aug 18, 1925; 1,550,246

E. ENTWlSTL-E ET AL APPARATUS FOR SELECTING AND SEPARATING LEASE WARP THREADS Filed Jun 24, 1922 3 Sheets-Sheet 1 Aug. 18, 1925.

E. ENTWISTLE ET AL APPARATUS FOR SELECTING AND SEPARATING LEASE WARP THREADS Filed June 24, 1922 5 Sheets-Sheet '2.

Aug. 18, 1925. 1,550,246

E. ENTWISTLE ET AL APPARATUS FOR SELECTING AND SEPARATING LEA SE WARP THREADS Filed June 24, 1922 3 Sheets-Sheet 3 Patented Aug. 18, 1925.

UNITED STATES PATENT OFFICE.

ERNEST ENTWISTLE, OF DARWEN, AND PETER SHAB-PLES AND ARTHUR TOWNLEY, OF BLACKBURN, ENGLAND.

. APPARATUS FOR SELECTING -AND SEPARATING LEASE-WARP THREADS.

Application filed June 24, 1922.

To all whom it may concern:

Be it known that we, ERNEST ENTWISTLE, PETER SHARPLES, and ARTHUR TowNLnY, re siding, respectively, at 142 Lomax Street, Darwen, in the county of Lancaster, England, 59 Hancock Street, Blackburn, in the county aforesaid, and 35 Queens Park Road, Blackburn, aforesaid, have invented certain new and useful Improvements in Apparatus for Selecting and Separating Lease-VVarp Threads, of which the following is a specification.

This invention relates to the selection and separation of leased warp threads in the preparation of the warp for looms for weaving, by selecting and separating mechanism mounted on a carriage arranged to be traversed across the width of the warp threads whilst the latter are maintained in a state of tension between clamps. The present invention has for its chief object to introduce an improved form of apparatus of this class which will select and separate any given number of threads in a lease, for eX- ample one and one, two and two, three and two, or otherwise according to their disposition in the lease and will also indicate at once if any mistake has been madein the leasing.

According to this invention the selecting and separating apparatus comprises one or more pairs of pins on an oscillatory plate, or plates pivotally mounted at or near the point where the leased warps cross, and a reciprocating holder for taking the separated thread, or groups of threads, hereinafter referred to as thread, and bringing it into the path of a carrier which places it in a position for enabling it to be subjected to the drawing in, or other required operation. The aforesaid pins and plates together with the holder and the carrier are advantageous 1y mounted on a pivoted frame which is normally maintained in a forward position by a spring and is moved back from such position by contact with the warp threads.

In the accompanying drawings:-

Fig. 1 is a front elevation and Fig. 2 a

-.transverse section showing the relative position of the leased warpthreads and the-selooting and separating apparatus.

Fig. 3 is a front elevation and Fig. 4c a plan of the selecting and se imrating apparatus drawn to a larger scale.

Figs. 5 and 6 are front elevations and tension on the warp threads.

Serial No. 5Y0,700.

F ig. 7 is a plan showing a similar form of apparatus but with the separating mechanism duplicated.

Figs. 8 and 9 are diagrams illustrating the operation of the apparatus with reference to the mechanism shown in Figs. 1 to 4.

Figs. 10 and 11 are similar views showing the operation of the apparatus with reference to the mechanism shown in Figs. 5 and 6.

Referring to Figs. 1 and 2, the warp threads A are maintained in a leased condition by rods cc and supported in a state of tension between two clamps a a The clamp a is mounted on suitably disposed arms a fixed on a shaft a which can be turned in either direction for regulating the This is conveniently effected by a hand wheel a operat ing worm gearing a. The selecting and separating mechanism is shown mounted upon a carriage B which is arranged to be traversed across the width of the warp threads in any suitable manner. The mechanism shown in Figs. 1 to 4 for separating the leased warp threads comprises two pins G C projecting from a plate 0 fixed on a shaft 0 that is pivotally mounted in a frame 0 Rigidly fixed on the shaft 0 is an arm 0 carrying a crank pin a" on which is mounted a block 0 This block is pivoted to one end of a connecting rod 0 whose other end is attached in a similar manner to a crank pin 0 on a shaft 0 to which rotary motion is imparted from any convenient source. Operating in conjunction with the separator is a holder D. In the example shown this holder comprises a tongue from which projects two pins d. This tongue is fixed on a shaft d which is slidably mounted in the frame 0 and receives an endwise reci'procating movement fromany convenient source. In the example shown the shaft d carries a pin (Z which enters a slot d in one end of a bar cl. This bar is pivoted at its other end to the carriage B and is connected by a link (Z to a crank pin (Z6 of a shaft d? to which a rotary motion is imparted from any convenient source. The frame 0 carrying the separator and holder is pivoted to the carriage at. 0 and is normally maintained in a forward position against a stop c flby a sprmg whose tension can be regulated by a nut and adjusting screw 0.

Operating in conjunction with the holder D, is a carrier E which takes the separated thread or threads from the pins d and places it on a movable toothed guide F which may advance the thread against a feeler to stop the travel of the carriage.

\Vhen the machine is in operation, the pins C C are continually oscillating and the tongue D continually moving backwards and forwards and as the carriage B travels towards the warp threads, the pins C C begin to press against the latter with the result that the pivoted frame 0 is turned on its pivot against the action of the spring 0 until the pins C C deflect the warp threads as they are alternately pressed against them at opposite sides of the lease. Each time a pin deflects the warp threads the first warp thread is separated from the remainder as shown in Fig. 8. The holder D now comes forward and takes the separated thread with it as shown in Fig. 9 into a position in which it can be taken by the carrier E as shown in Fig. 4 and transferred on to the movable toothed guide F.

The arrangement shown in Figs. 5 to 7 is the same as that described with reference to Figs. 1 to 4 with the exception that four separating pins C, C C C are used. The additional pins O and C are fixed on a plate 0 attached to a sleeve 0 that is retatably mounted upon the shaft 0 The sleeve 0 is provided with an arm 0 carrying a crank pin 0 which is connected by a rod 0 to a crank pin 0 on the shaft 0 This crank pin forms part of a two throw crank of which the other pin 0 aetuates the shaft 0 in the manner described with reference to Figs. 3 and a.

This construction is more suitable where ver 1 fine warps are used as it constitutes a double lock for positively holding the warp threads apart above and below the point where they cross each other.

In operation the pins C C come into action simultaneously to displace the warp threads and on the next movement the pins C C come into operation, as shown in Figs. 10 and 11.

In either arrangement should a fault in the leasing occur it would be at once detected by the operator as soon as the threads were placed on the toothed guide F. For example, if the threads were leased one and one and two threads lay together they would both be taken up by the carrier E and deposited in one of the notches of the toothed guide.

lVhat we claim as our invention and desire to secure by Letters Patent in the United States is 2- 1. In apparatus of the class described for selecting and separating leased warp threads, a carriage adapted to be driven past the warp threads, a plate pivoted on the carriage approximately at the level where the warp threads cross one another and carrying two forwardly projecting arms, means for imparting an oscillatory movement to such plate to cause the arms alternately to push back the warp threads above and below the point where they cross one another, a tongue provided with a lateral projection, means for moving such tongue out of the path of the warp threads and for advancing it to cause it to take a separated warp thread out of the path of the remaining warp threads, a selector needle mounted on the carriage, a thread separator operating in conjunction with the selector needle, and means for actuating the selector needle to cause it to take the separated warp thread off the tongue and transfer it to the separator.

2. In apparatus of the class described for selecting and separating leased warp threads, a carriage adapted to be driven past the warp threads, two plates pivoted on the carriage approximately at the level where the warp threads cross one another, an upper and lower forwardly projecting arm carried by each plate, means for imparting an oscil la'tory movement to such plates in opposite directions simultaneously to cause two arms simultaneously to push back the warp threads above and below the point where they cross one another, a tongue provided with a lateral projection, means for moying such tongue out of the path of the warp threads and for advancing it to cause it to take a separated warp thread out of the path of the remaining warp threads, a selector needle mounted on the carriage, a thread separator operating in conjunction with the selector needle, and means for actuating the selector needle to cause it to take the separated warp thread off the tongue and transfer it to the separator.

3. In apparatus of the class described for selecting and separating leased warp threads, a carriage adapted to be driven past the warp threads, a frame pivotally mounted on the carriage, a spring for normally holding such frame in a forward position, a shaft pivotally mounted in such frame, a plate fixed on such shaft and carrying two forwardly projecting arms, situated above and below the point where the warp threads cross one another, means for imparting an oscillatory movement to the shaft, a tongue provided with a lateral projection, a shaft carrying such tongue and slidably mounted in the aforesaid frame, means for imparting an endwise reciprocating movement to the shaft, a selector needle mounted on the car-' riage, a thread separator operating in conjunction with the selector needle, and means for actuating the selector needle to cause it to take the separated warp thread off the tongue and transfer it to the separator.

l. In apparatus of the class described for selecting and separating leased warp threads, a carriage adapted to be driven past the warp threads, a frame pivotally mounted on the carriage, a spring for normally holding such frame in a forward position, a shaft pivotally mounted in such frame, a sleeve encircling said shaft, a plate fixed on the shaft and sleeve respectively, each plate carrying two forwardly projecting arms, situated above and below the point Where the Warp threads cross one another, means for imparting an oscillatory movement to the shaft and sleeve in opposite directions simultaneously to push back the warp threads above and below the point Where they cross one another, a tongue provided With a lateral projection, means for moving, such tongue out of the path of the warp threads and for advancing it to cause it to take a separated warp thread out of the path of the remaining warp threads, a selector needle mounted on the carriage, a thread separator operating in conjunction with the selector needle, and means for actuating the selector needle to cause it to take the separated Warp thread off the tongue and transfer it to the separator.

In testimony whereof we have a'fiixed our signatures.

ERNEST ENTVVISTLE. PETER SHARPLES. ARTHUR TOl/VNLEY. 

